Granddaddy Purple Autoflower

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Basic infos

Granddaddy Purple Autoflower is an indica from Seed Supreme and can be cultivated indoors, outdoors and greenhouse (Where the plants will need a flowering time of ±70 days) Seed Supreme's Granddaddy Purple Autoflower is only available as feminized seeds.

Seed Supreme Description

Granddaddy Purple Autoflower is an autoflowering indica version of the iconic Granddaddy Purple (GDP), combining Purple Urkle and Big Bud genetics with ruderalis for automatic flowering. GDP is famous for its deep purple colouration, grape-berry aroma, and powerful indica effects. This autoflowering version makes those qualities accessible without a photoperiod schedule. Available through Seed Supreme.

Genetics & Background
Granddaddy Purple was created by Ken Estes in California in 2003. The original Purple Urkle x Big Bud cross produced a strain with distinctive visual characteristics — deep purple buds, bright orange pistils — and a complex berry-grape terpene profile that became iconic in the US West Coast market. The autoflowering version preserves this heritage with added growing convenience.

Effects
Granddaddy Purple Autoflower delivers a powerful, relaxing, full-body indica effect. Reported effects include:

• Relaxed — deep physical relaxation throughout the body
• Sleepy — strong sedation at moderate to high doses
• Euphoric — initial cerebral uplift accompanying the physical effects

THC typically ranges from 17–23%. Best suited to evening use.

Flavor & Aroma
Dominant terpenes — Myrcene, Caryophyllene, Pinene — produce:

• Grape — rich, sweet grape character inherited from Purple Urkle
• Berry — mixed berry notes alongside the primary grape profile
• Earthy — a grounding earthy base underlying the fruity top notes

Growing Granddaddy Purple Autoflower
An autoflowering feminized strain with potential for purple phenotype expression.

• Flowering time: 8–10 weeks from germination
• Expected yield: moderate to above average
• Plant height: short to medium — compact indica structure
• Grow environment: indoors, outdoors and greenhouse
• Difficulty: beginner-friendly

Seed Supreme Listing
Listed as a feminized autoflower from Seed Supreme. GDP Autoflower is ideal for growers seeking classic West Coast indica characteristics in a fast, light-independent format.